Relative to set the touch panel on the LCD panel using the original method, the function of the touch panel and LCD panel integration research increasingly prevalent.Touch panel and LCD panel integration including "In - cell" and "On - cell".The In - cell function refers to the touch panel is embedded into the method of LCD pixels.On - cell function refers to the touch panel is embedded into the color filter between the substrate and the polarizing film method.

If you can make originally the external components and the integration of LCD, touch panel, and possible panel thin and light.In addition, the outside of the touch panel of liquid crystal in the original way, there is a physical space between LCD and touch panel, therefore, on the top of the LCD panel and touch panel below the reflect between external light, etc., in bright environment such as outdoors reduced visibility.If the touch panel components can realize integration of the external, can inhibit the visibility of reduce the phenomenon such as outdoor.

The In - cell technical proposals were put forward, but because it is difficult to ensure that yield and display performance, practical failed to make progress.The reason is that need to be in a TFT array substrate of pixels inside touch sensors function.Therefore, must use the complex semiconductor manufacturing process, it become a stumbling block to improve the yield.In addition, within the pixels embedded touch sensors, available in the area of the display part will reduce, this is the main reason for the image quality degradation.

However, with the appearance of On - cell technology, LCD and touch panel integration in the transit.Because only in the color filter substrate and polarizing film formed between simple transparent electrode design, etc., so easy to ensure that yield.In addition, the effective display pixels within the area of the area will not reduce, almost won't happen this quality degradation phenomenon.

If On - LCD integration technology such as cell way gained popularity, has no need to use the external touch panel parts.Is likely to touch panel manufacturers from external transformation for LCD and touch panel makers color filter manufacturer.Product manufacturers from the hand of the touch panel makers purchase the outer parts of the original supply chain will be completely changed.